Process of manufacturing carburizing material and oil distillates.



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HUGH RODMAN, 0F EDGEWOOD, PENNSYLVANIA,- ASSIGNOR T0 RODMAN CHEMICALCOMPANY, OF EAST PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYL-VANIA. I

PROCESS OF MANUFACTURING CARBURIZING MATERIAL AND OIL DISTILLATES.

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No Drawing.

To all whom it may concern:

Be it known that I, HUGH RODMAN, a citizen of the United States, and aresident of Edgewood, in the county of Allegheny and State ofPennsylvania, have made a new and useful Invention in Processes ofManufacturing Oarburizing Material and Oil Distillates, of which thefollowing is a specification.

This invention relates to the production of petroleum products bydistillation and to the simultaneous production of carburizing material,consisting of petroleum coke in which an ener izing agent isincorporated.

An object 0% the invention is to produce a new and improved process ofmanufacturing carburizing material in which the material results as aby-product in the commercial distillation of oils or in which oils andother hydrocarbon distillates are obtained as byproducts in themanufacture of carburizing material.

Materials to be efiective ascarburizing compounds must contain carbon orcarbonaceous substances in connection with substances or materials whichrender them active as carburizing agents and which for want of a betterterm may be termed energizing agents. It is well known that carbon,

in the form of coal or coke, is rendered effective as a carburizingagent when it is intimately mixed with an energizing agent, such, forexample, as lime, soda ash, or barium carbonate. The coke residueresulting from the destructive distillation of oil produces anexcellentcarburizing material when intimately mixed with an energizingagent, such as above noted.

In carrying out my invention I mix a powdered or finely dividedenergizing agent with the petroleum base prior to the final process ofdistillation. The di-stillates liberated during the operation ofdistilling are col-.-

Specification of Letters Patent.

Patented Dec. 119, 119I6.

the oil is finally delivered to a coking still,

ordinarily worked under high pressure, in

which the distillation is completed and in which the coke residue isobtained. i

I have discovered that an efiective method of making carburizingmaterial or energized coked material is to mix a powdered or finelydivided energizing agent with the'fiuid petroleum or petroleum baseprior to its destru-ctive'distillation in the coking still used in theordinary commercial processes of oil distillation. By so doing theenergizing material employed will be thoroughly mixed with thedistilling fluid and eventually remains in an evenly divided anduniformly extended condition throughout the mass of coke after thedistilled oils have been driven oil. The energizing material may, ofcourse, be put into and mixed with the fluid oil in a special apparatus,or it may be put directly into the fluid after the fluid has reached thecoking still, as agitation of the fluid during the boiling and distillinwill efiectively mix the energizer with the uid.

One of the principal advantages of the invention is that advantagemay betaken of the commercial manufacture of petroleum products for theproduction of carburizing material, whichis done very simply by mixingthe energizing material with the fluid material to be distilled andallowing the two materials to remain together during the agitationcaused by the heating of the still and eventually to remain as apetroleum coke carrying predetermined amounts of energizing materialevenly distributed throughout its mass.

My invention not only insures the production of an excellent carburizingmaterial due method of making a carburizing material inasmuch asadvantage is taken of existing well developed manufacturingprocesseswithout adding any appreciable cost to these processes, andwithout detriment to the quantity or quality of the oil or distillatesobtained.

I do not wish to limit this invention to the .character or 'amount ofenergizing material added to the fluid or which eventually remainsdisseminated throughout the coke which results from the completedistillation of the fluid, but I will state that a satisfactory materlalcan be obtained by adding enough calcium hydrate and enough sodiumcarbonate in powdered form so that the coke will contain fifteen percent. of calcium hydrate and ten per cent. of sodium carbonate.-

Another satisfactory mixture consists in adding enough barium carbonateto the fluid material so that the coke residue will contain forty percent. of barium carbonate. obvious that the amount of energizingmaterial added to the fluid before distilling must be based upon theratio of coke produced to fluid distilled, which ratio will vary withthe character of fluid treated.

What I claim is l. The process of producing petroleum products andcarburizing material which consists in adding to the petroleum a finelydivided energizing .agent, in subjecting the mixture to destructivedistillation, in collecting the products driven ofi and removing thecoked residue from the still.

2. The process of producing carburizing material and hydrocarbondistillates, which consists in mixing the petroleum base to be distilledwith an energizing agent prior to destructive distillation, finallysubjecting the base including the mixture to destructive distillation,in collectin the distillates resulting from the destructlvedistillation, and then removing the residue containing the energizingagent from the still in which It is the destructive distillation hasbeen com; pleted. i

3. The process of producingoil and carburizing material, which consistsin mixing a finely divided energizing agent with a petroleum base,subjecting the petroleum to complete distillation 'colleoting thedistillates, and then breaking up the residue containing the energizingagent;

4:. The process of producing carburizing material and oil distillates,which consists in subjecting the oil to distillation, mixing the residueresulting after a partial distilla tion of the oil with finely dividedenergizing material, destructively distilling the mixture, andcollecting the distillates and then removing the mixture of petroleumcoke and energizing material from the still HUGH RODMAN. Witnesses E. W.MCCALLISTER, C. W. MCGHEE.

